From b80036abec3c008306852334d7c8f057fee11d54 Mon Sep 17 00:00:00 2001
From: Benoit Steiner <benoit.steiner.goog@gmail.com>
Date: Mon, 13 Jul 2015 11:16:37 -0700
Subject: Enabled the construction of a fixed sized tensor directly from an
 expression.

---
 unsupported/Eigen/CXX11/src/Tensor/TensorFixedSize.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'unsupported/Eigen/CXX11/src/Tensor/TensorFixedSize.h')

diff --git a/unsupported/Eigen/CXX11/src/Tensor/TensorFixedSize.h b/unsupported/Eigen/CXX11/src/Tensor/TensorFixedSize.h
index 76998b690..5e511dc4b 100644
--- a/unsupported/Eigen/CXX11/src/Tensor/TensorFixedSize.h
+++ b/unsupported/Eigen/CXX11/src/Tensor/TensorFixedSize.h
@@ -197,6 +197,23 @@ class TensorFixedSize : public TensorBase<TensorFixedSize<Scalar_, Dimensions_,
     }
 #endif
 
+    template<typename OtherDerived>
+    EIGEN_DEVICE_FUNC
+    EIGEN_STRONG_INLINE TensorFixedSize(const TensorBase<OtherDerived, ReadOnlyAccessors>& other)
+    {
+      typedef TensorAssignOp<TensorFixedSize, const OtherDerived> Assign;
+      Assign assign(*this, other.derived());
+      internal::TensorExecutor<const Assign, DefaultDevice>::run(assign, DefaultDevice());
+    }
+    template<typename OtherDerived>
+    EIGEN_DEVICE_FUNC
+    EIGEN_STRONG_INLINE TensorFixedSize(const TensorBase<OtherDerived, WriteAccessors>& other)
+    {
+      typedef TensorAssignOp<TensorFixedSize, const OtherDerived> Assign;
+      Assign assign(*this, other.derived());
+      internal::TensorExecutor<const Assign, DefaultDevice>::run(assign, DefaultDevice());
+    }
+
     EIGEN_DEVICE_FUNC
     EIGEN_STRONG_INLINE TensorFixedSize& operator=(const TensorFixedSize& other)
     {
-- 
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